Make batch_update_statements_public (#9)

Author: quentindemetz

.github/workflows/tests.yml

@@ -13,24 +13,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Ruby
+      - name: Set up Ruby and Bundler
         uses: ruby/setup-ruby@v1.196.0
         with:
           ruby-version: 3.3.4
           bundler-cache: true
 
-      - name: Install dependencies
-        run: bundle install
-
-      - name: Install pre-commit
-        run: |
-          sudo apt-get update
-          sudo apt-get install --yes --no-install-recommends python3 python3-pip
-          pip install pre-commit
-          pre-commit install --install-hooks
-
-      - name: Run linters
-        run: pre-commit run --all-files
+      - name: Setup pre-commit and run linters
+        uses: pre-commit/action@v3.0.1
 
       - name: Run tests
         run: bin/rspec

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    batch_update (0.0.1)
+    batch_update (0.0.2)
       activerecord (~> 7.0)
       activesupport (~> 7.0)
 

README.md

@@ -53,5 +53,12 @@ Specify a different batch size (100 by default):
 Cat.batch_update(cats, columns: :all, batch_size: 1000)
 ```
 
+Generate the relevant SQL statements:
+```ruby
+Cat.batch_update_statements([{id: 1, name: 'Lilly'}, {id: 2, name: 'John'}]).each do |query|
+  Cat.connection.execute(query)
+end
+```
+
 ## License
 MIT

batch_update.gemspec

@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name        = 'batch_update'
-  s.version     = '0.0.1'
+  s.version     = '0.0.2'
   s.summary     = 'Update multiple records with different values in a small number of queries'
   s.description = 'A simple hello world gem'
   s.authors     = ['Quentin de Metz']

lib/batch_update.rb

@@ -39,8 +39,6 @@ def batch_update(entries, columns:, batch_size: 100, validate: true)
       updated_count
     end
 
-    private
-
     def batch_update_statements(entries, update_on: :id, batch_size: 100)
       update_on = Array.wrap(update_on).map(&:to_s)
 
@@ -62,6 +60,8 @@ def batch_update_statements(entries, update_on: :id, batch_size: 100)
       end
     end
 
+    private
+
     def cte_table
       @cte_table ||= Arel::Table.new('batch_updates')
     end

spec/batch_update_spec.rb

@@ -4,7 +4,7 @@
 
 describe BatchUpdate do
   describe '#batch_update_statements' do
-    subject(:sql_queries) { Cat.__send__(:batch_update_statements, cats, **kwargs) }
+    subject(:sql_queries) { Cat.batch_update_statements(cats, **kwargs) }
 
     let(:cats) { [] }
     let(:kwargs) { {} }